Android file operation pause -


i wonder whether possibile pause file operation such read file, example, have file named a.pdf in ciphertext, there app--foxit reader, want read a.pdf file, want pause read operation while, have time decrypt a.pdf file, , pass plaintext foxit reader. wonder whether there way this? transparent apps using cipher content. ideas?

i don't want write own app read operation, want detect operation, , when app reading specified file under directory encrypted files, decrypt file , after read/write, encrypt file again. certaintly, app can read/write file must satisfy conditions have set, it's not problem.

you create activity intent-filter manage intent.action_view , recive uri file.

at point can decrypt file , save pdf.

then start activity view new pdf file or view pdf inside app apv library.

in first case must create service clean directory decrypted pdf file.


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